Download or read book Metal Ion Biosensor for Wastewater Discharge written by and published by . This book was released on 2003 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: A carbonic anhydrase-based metal ion biosensor was optimized for measuring copper in wastewater and seawater using molecular biology methods. CA variants were prepared that enhanced the copper ion specificity and/or decreased the copper affinity were incorporated into the sensor. We have also incorporated two additional, commercially available fluorescent labels (Alexa Fluor 660 and Oregon Green) into the transducer by covalently labeling a CAII mutant containing a single cysteine residue. Finally, we have used made fusions with fluorescent proteins (dsRed-CA) as a new method of transducing metal ion concentration. These methods will be useful in the development of sensors to determine the concentration of metal ions in wastewater and the ocean.

Download or read book Exploratory Development of Metal Ion Biosensor written by and published by . This book was released on 2000 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes exploratory development of the fiber optic metal ion biosensor initially developed under ONR contract NOOOl4-9l-J-l572. The anticipated application is to monitor wastewater outflows to verify the success of treatment procedures for removing Cu(II); of special interest are wastewater outflows from drydocks resulting from hull blasting and washing operations, which contain ppm levels of Cu and Zn prior to treatment. Issues in this phase of development include the response speed and reversibility of the sensor, transducer stability, and the presence of interferents in treated wastewater. We found that the sensor responded in less than one minute to part per trillion levels of free Cu(II), that it was reversible at the expected rate, that treated wastewater could be measured, and that the apoprotein was storable for months.

Download or read book Plasmonic Nanosensors for Detection of Aqueous Toxic Metals written by Dinesh Kumar and published by CRC Press. This book was released on 2022-03-03 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: Delving into the development of plasmonic nanosensors to detect toxic heavy metal ions in aqueous media, this book explores a significant and burgeoning branch of nanosensor technology based on plasmon resonance and serves as a guide for conducting research in this area. All types of nanosensors for water treatment and detection of heavy metals are also introduced. Plasmonic Nanosensors for Detection of Aqueous Toxic Metals provides up-to-date data upon which researchers and ecologists, industrialists, and academicians can build to create a variety of plasmonic nanosensors. This book also covers paper-based devices based on plasmon for quantifying toxic metals in water and considers important applications of different plasmon-based nanomaterials—graphene, core-shell, quantum dots, nanoporous membrane, carbon nanotubes, and nanofibers. It is an accessible resource for all those involved in the field of nanosensors and their applications and can pave the way for a better understanding of nanosensor technology with regard to toxic metals. Key features: Gives an in-depth account of the extraordinary optical property at the nanoscale and its use in sensing Offers up-to-date study and practical results for academia, researchers, and engineers working in water treatment and purification Provides sensing application of thematic nanomaterials such as quantum dots and core-shell

Download or read book Electrochemical Biosensors written by Serge Cosnier and published by CRC Press. This book was released on 2015-01-26 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since four decades, rapid detection and monitoring in clinical and food diagnostics and in environmental and biodefense have paved the way for the elaboration of electrochemical biosensors. Thanks to their adaptability, ease of use in relatively complex samples, and their portability, electrochemical biosensors now are one of the mainstays of analy

Download or read book Proceedings from the International Conference on Advances in Engineering and Technology AET2006 written by Jackson Mwakali and published by Elsevier. This book was released on 2006-10-19 with total page 867 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings from the International Conference on Advances in Engineering and Technology (AET2006)

Download or read book Biosensors for Environmental Monitoring written by Toonika Rinken and published by BoD – Books on Demand. This book was released on 2019-11-20 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Real-time and reliable detection of molecular compounds and bacteria is essential in modern environmental monitoring. For rapid analyses, biosensing devices combining high selectivity of biomolecular recognition and sensitivity of modern signal-detection technologies offer a promising platform. Biosensors allow rapid on-site detection of pollutants and provide potential for better understanding of the environmental processes, including the fate and transport of contaminants.This book, including 12 chapters from 37 authors, introduces different biosensor-based technologies applied for environmental analyses.

Download or read book Contaminants of Emerging Concerns and Reigning Removal Technologies written by Manish Kumar and published by CRC Press. This book was released on 2022-06-30 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: With an increased demand for wastewater reuse, groundwater recharge with treated wastewater has been practiced across the globe. As a result, groundwater quality deteriorates by emerging micropollutants from various anthropogenic origins, including untreated wastewater, seepage of landfill leachate, and runoff from agricultural lands. The fate of such emerging and geogenic contaminants in subsurface systems, especially in the groundwater, depends on several factors. Physicochemical properties of contaminants such as octanol-water partition coefficient, dissociation constant, water solubility, susceptibility to biodegradation under anaerobic conditions, and environmental persistence under diverse geological and pH conditions play a critical role during subsurface mass flow. Thus, advanced wastewater treatment techniques, followed by implementing stricter guidelines, are some of the measures that can safeguard water resources. This book, in general, gives an understanding of the fate and mitigation strategies for emerging and geogenic contaminants in the groundwater. The first and second sections provide a detailed insight into various removal techniques and mitigation approaches. Possible treatment strategies, including bioremediation and natural attenuation, are also covered in those sections. Environmental assessment, groundwater vulnerability, health effects, and regulations pertaining to various contaminants are systematically presented in the third section.

Download or read book Molecular Approaches to Optical Biosensors written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A carbonic anhydrase-based metal ion biosensor was optimized using molecular biology methods. CA variants were prepared that alter the metal ion specificity, the half-time for metal equilibration, the zinc dissociation constant, and the metal detection limit. Reagentless signal transduction methods and enhanced immobilization methods were also developed. These methods will be useful in the development of sensor arrays to determine the concentration of multiple metal ions in wastewater and the ocean.

Download or read book Advanced Materials for a Sustainable Environment written by Naveen Kumar and published by CRC Press. This book was released on 2022-12-30 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes recent and critical aspects of advanced materials for environmental protection and remediation. It explores the various development aspects related to environmental remediation, including design and development of novel and highly efficient materials, aimed at environmental sustainability. Synthesis of advanced materials with desirable physicochemical properties and applications is covered as well. Distributed across 13 chapters, the major topics covered include sensing and elimination of contaminants and hazardous materials via advanced materials along with hydrogen energy, biofuels, and CO2 capture technology. Discusses the development in design of synthesis process and materials with sustainable approach. Covers removal of biotic and abiotic wastes from the aqueous systems. Includes hydrogen energy and biofuels under green energy production. Explores removal of environmental (soil and air) contaminants with nanomaterials. Reviews advanced materials for environmental remediation in both liquid and gas phases.

Download or read book Impedance Spectroscopy and its Application in Biological Detection written by Geeta Bhatt and published by CRC Press. This book was released on 2023-12-07 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes basics of impedance spectroscopy technology, substrate compatibility issues, integration capabilities, and several applications in the detection of different analytes. It helps explore the importance of this technique in biological detection, related micro/nanofabricated platforms and respective integration, biological synthesis schemes to carry out the detection, associated challenges, and related future directions. The various qualitative/quantitative findings of several modules are summarized in the form of the detailed descriptions, schematics, and tables. Features: Serves as a single source for exploring underlying fundamental principles and the various biological applications through impedance spectroscopy. Includes chapters based on nonbiological applications of impedance spectroscopy and IoT-enabled impedance spectroscopy-based methods for detection. Discusses derivations, substrates, applications, and several integrations. Describes micro/nanofabrication of impedance-based biological sensors. Reviews updated integrations like digital manufacturing and IoT. This book is aimed at researchers and graduate students in material science, impedance spectroscopy, and biosensing.

Download or read book Inorganic Organic Composites for Water and Wastewater Treatment written by Eric Lichtfouse and published by Springer Nature. This book was released on 2021-12-03 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second volume on ''Inorganic-Organic Composites for Water and Wastewater Treatment'' reviews research findings on advanced materials and methods for purification. Considering the fact that new emerging pollutants are released into the environment and water bodies, it is necessary to develop more advanced techniques in order to treat them. The utilization of metal – organic framework in view of applications, synthesis, properties like adsorption, characterization of the electronic and geometric aspects, and hybrid systems is reiewed in this book, and the advantages/disadvantages, shortcomings including future prospects associated with metal-based nanoparticles and nanocomposites for water decontamination are discussed. In addition, the use of carbon quantum dots, supramolecular ion-exchange resins, multifunctional composite aerogels, algal biomass valorization and titania-containing composites in treatment processes are also presented.

Download or read book Fiber Optic Metal Ion Biosensor written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The central objective of this project was to see if a fluorescence-based sensor employing a biological or biomimetic molecule as a transducer could demonstrate high sensitivity, selectivity as well as rapid and reversible response to an analyte such as Cu(II) or Zn(II). A key goal was to see if the sensor figures of merit could be optimized by modification (mutagenesis)of the transducer molecule; among the figures of merit were the affinity, selectivity, stability, and response speed of the sensor. Results of that work are described in the ONR grant Final Reports of Drs. Carol Fierke and David Christianson.

Download or read book Pesticides Remediation Technologies from Water and Wastewater written by Mohammad Hadi Dehghani and published by Elsevier. This book was released on 2022-04-26 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pesticides Remediation Technologies from Water and Wastewater focuses on environmental aspects and health effects of pesticides, the use of conventional and AOPs technologies, and adsorption processes and nanomaterials for the removal of pesticides from water and wastewater. The deterioration of water quality is of great concern due to its effects on aquatic organisms, humans and the ecosystem. Among the pollutants, pesticides are a major concern in villages and farm land. This edited book bridges the gap between old and new knowledge about the categorization of pesticides, the presence of them in water, wastewater, soil and foods, and new methods to detect them from water matrices. This edited book provides the necessary basic knowledge to new researchers who want to learn about pesticides and the ways to eliminate them in aqueous matrices. Moreover, it is also a helpful resource for mature researchers in this field, providing them with new trends in water and wastewater treatment processes, preparation and application of novel adsorbent materials. Includes methods for effectively removing pesticides from potable water and water bodies Provides techniques that are eco-friendly and that do not use toxic chemicals and are lower in cost Presents information needed to identify severe health effects on human beings and aquatic animals

Download or read book Construction and Evaluation of a Metal Ion Biosensor written by Lia Tescione and published by . This book was released on 1993 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: E. coli, genetically engineered with a mercury(II)-sensitive promoter and the lux genes from Vibrio fischeri, were used as microbial sensors for the detection of mercury. Evaluation of this genetic construction was carried out by determining the effects of various parameters on cell suspensions maintained at constant conditions in a small vessel. The strongest fight intensities and quickest induction times occurred with cells in the mid-exponential growth phase maintained at 280C, concentrated to 1x10 to the 9th power cells/mL, mixed at very fast speeds, and aerated at 2 vvm (volume of air per volume of culture per minute) during light measurement in the small vessel. The sensitivity of these cells to the mercuric ion lied in the range of 0.02-4 micrometer (4-800 ppb) and the total response time was on the order of one hour, depending on the above parameters. The cells exhibited great specificity for mercury. The cells have almost equal specificity for organic and inorganic form of the. mercuric ion and responded more weakly to the mercurous ion. A simple, inexpensive, durable miniature probe was constructed and operated using the optimum parameters found in the small vessel as a guide. The range of sensitivity to the mercuric ion detected in the probe was 0.01-4 micrometer when aeration was provided ... Metal ion biosensor, Bioluminescence, Mer-lux genetic construction, Mercury.

Download or read book Advanced Research in Nanosciences for Water Technology written by Ram Prasad and published by Springer. This book was released on 2019-02-04 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: The establishment of clean, safe water is one of the major challenges facing societies around the globe. The continued urbanization of human populations, the increasing manipulation of natural resources, and the resulting pollution are driving remarkable burden on water resources. Increasing demands for food, energy, and natural resources are expected to continue to accelerate in the near future in response to the demands of these changing human populations. In addition, the complexity of human activities is leading to a diversity of new chemical contaminants in the environment that represent a major concern for water managers. This will create increased pressure on both water quantity and quality, making it increasingly difficult to provide a sustainable supply of water for human welfare and activities. Although protection of water resources is the best long-term solution, we will also need innovative novel approaches and technologies to water treatment to ensure an adequate superior quality resource to meet these needs. Solving tomorrow’s water issues will require unique approaches that incorporate emerging new technologies. Great advances have been made in the area of nanotechnology. Due to their unique physical and chemical properties, nanomaterials are extensively used in antibacterial medical products, membrane filters, electronics, catalysts, and biosensors. Nanoparticles can have distinctly different properties from their bulk counterparts, creating the opportunity for new materials with a diversity of applications. Recent developments related to water treatment include the potential use of carbon nanotubes, nanocompositae, nanospheres, nanofibers, and nanowires for the removal of a diversity of chemical pollutants. By exploiting the assets and structure of these new materials, such as increased surface area, high reactivity, and photocatalytic action, it will be possible to create technologies that can be very efficient at removing and degrading environmental pollutants. Understanding and using these unique properties should lead to innovative, cost-effective applications for addressing the complexities of emerging needs for water treatment and protection. Although still in the early stages, research into the application of nanotechnology shows great promise for solving some of these major global water issues. This comprehensive text describes the latest research and application methods in this rapidly advancing field.

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Margret Kroch Frishman written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: